Find the multiport valve—it’s the lumpy plastic dial near the filter with words like “Filter,” “Backwash,” and “Rinse.” It feels like a spaceship control panel for a 1986 Honda Civic. Turn the handle to “Backwash”—and only push down if it’s a push-pull model. Never force it. If it resists, you’re probably turning it the wrong way, which is fine. We all use screwdrivers as pry bars sometimes, but not today.
Pro tip: If your valve has a word you don’t recognize, like “Recirculate” or “Winterize,” just ignore it. That’s for people who own Instagram wellness accounts and use words like “aquascape.” You’re here to make the water dirty again, then clean it. Stay focused.
Backwash Sand Filter Procedure at Chelsea Pugliese blog
